boost controller with ceramic bearing

That spinning thing that makes all of the cool noises. OE and Aftermarket.

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sliverumble
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boost controller with ceramic bearing

Post by sliverumble »

Does a ceramic bearing make a big difference in spring/ball boost controllers?

Thanks,
Grant
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Legacy777
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Re: boost controller with ceramic bearing

Post by Legacy777 »

I'm assuming you mean a ceramic ball rather then "bearing". In theory the ceramic balls are lighter, and therefore should react quicker than a stainless steel ball, but that will depend on the design of the boost controller and how large the ball is.

Which particular boost controller are you looking at?
Josh

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sliverumble
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Re: boost controller with ceramic bearing

Post by sliverumble »

Ive got one of those basic NXS mbc's you can get off ebay for around 20 bucks
It just sometimes works great and other times doesn't. I saw one made by prosport that looked nice, and had the ceramic ball. It was only 40. Any thoughts?
92 SS
-TD04
-3" dp/ turbo back w/HKS can
-wrx/legacy susp combo
-Tribeca Front Sway
-whiteline rear sway
-wrx front brakes
-sti lip
-ver.4 sti tranny w/rear diff
-wrx tmic
-mbc @14.5-15psi w/HKS FCD
-Apexi turbo timer
Legacy777
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Re: boost controller with ceramic bearing

Post by Legacy777 »

I don't have any experience with either of those, but I would guess the prosport will probably be a little better.

It sounds like your NXS boost controller spring may be binding or sticking, which is causing problems.

What specific symptoms are you having? Does it overboost, not build boost.....?
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
sliverumble
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Joined: Sat May 29, 2010 7:02 pm

Re: boost controller with ceramic bearing

Post by sliverumble »

Thanks for the fast response. Yeah Im thinking the spring is binding on the internal threads. Thats the only thing I can think of. It doesnt really over boost. Ive got an FCD that wont let it boost over 15. When the boost controller is binding or sticking the boost is around 7 Id say. I usually end up flooring the accellerator and then things move around in the controller and it'll let me boost 14 to 15 again. Its really annoying. It builds boost fine, definitly slower though when the boost controller is binding though.
92 SS
-TD04
-3" dp/ turbo back w/HKS can
-wrx/legacy susp combo
-Tribeca Front Sway
-whiteline rear sway
-wrx front brakes
-sti lip
-ver.4 sti tranny w/rear diff
-wrx tmic
-mbc @14.5-15psi w/HKS FCD
-Apexi turbo timer
sliverumble
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Posts: 79
Joined: Sat May 29, 2010 7:02 pm

Re: boost controller with ceramic bearing

Post by sliverumble »

im thinking of shaving the bottom of the adjustment screw so there is a little ledge for the spring to sit on because I think its probably pitching around
92 SS
-TD04
-3" dp/ turbo back w/HKS can
-wrx/legacy susp combo
-Tribeca Front Sway
-whiteline rear sway
-wrx front brakes
-sti lip
-ver.4 sti tranny w/rear diff
-wrx tmic
-mbc @14.5-15psi w/HKS FCD
-Apexi turbo timer
Legacy777
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Re: boost controller with ceramic bearing

Post by Legacy777 »

That might work. If it doesn't work, there are other boost controllers out there.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
cj91legss
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Re: boost controller with ceramic bearing

Post by cj91legss »

instead of shaving it, what about taking a drill bit and making more of a put that is well rounded. maybe that'll be better.
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sliverumble
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Re: boost controller with ceramic bearing

Post by sliverumble »

thats a good call, I didnt think of that. I used a dremel to carve some of it out but a drill does seem like it would work better. I actually lost the spring that is meant for the controller, but I snipped the ends off a clothes pin spring and reshaped it at each end a bit. Seems to give consitant boost. its a real stiff spring
92 SS
-TD04
-3" dp/ turbo back w/HKS can
-wrx/legacy susp combo
-Tribeca Front Sway
-whiteline rear sway
-wrx front brakes
-sti lip
-ver.4 sti tranny w/rear diff
-wrx tmic
-mbc @14.5-15psi w/HKS FCD
-Apexi turbo timer
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